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Thread size of stub axle
Posted: Fri Jun 25, 2021 9:49 pm
by jagnut66
Hi,
One of my stub axles appears to have a slightly chewed thread at the edge and won't allow me to refit the nut.
Can someone advise me what the correct sized Die would be to correct / repair the thread on this?
A link to one for sale would be brilliant too. 
Many thanks,
Mike.
Re: Thread size of stub axle
Posted: Fri Jun 25, 2021 10:14 pm
by philthehill
The thread is 5/8" x 18 TPI UNF. The L/H stub has a L/H thread.
The damaged stub axle can be pressed out and a replacement pressed in. A worn/scrap swivel is a good source of a replacement stub as the stub incurs very little wear.
Re: Thread size of stub axle
Posted: Sat Jun 26, 2021 3:23 am
by jagnut66
Thanks Phil.
Re: Thread size of stub axle
Posted: Sat Jun 26, 2021 5:26 am
by win
Hi
If the damage to the thread is only slight, a thread file may clean up the thread.
I have a 18 TPI thread file you may borrow.
Regards Win
Re: Thread size of stub axle
Posted: Sat Jun 26, 2021 7:42 am
by philthehill
If the damage is slight and is on the R/H thread stub - cut a 5/8" UNF hub nut in half and clamp it to the inner end of the thread and unscrew the stub through the split nut. That should re-form the thread. You can do the same with a L/H thread 5/8" UNF hub nut for the L/H stub.
The two halves of the nut can be held together with a suitable ring spanner.
Re: Thread size of stub axle
Posted: Sun Jun 27, 2021 12:24 pm
by jagnut66
Fotunately, after walking away and returning to it the next day, a file and renewed patience proved enough in this case.
I have also located L/H and R/H dies and will purchase them to add to my collection of tools.
Thanks for your help.
Best wishes,
Mike.